UNIX for Dummies Questions & Answers

Hi

I've been banging my head with this problem for two days, and I'm quite hopeless.

First of all, i would like to insist that no samba is involved.

I have a bunch of users whose home directory is /home/SFFS . Always. All of them. And they all belong to the group sffs.
Permissions of /home/SFFS look like this :
233360 drwxrwsr-x 3 root sffs 96 2009-12-12 16:03 . Notice that I have chmodded it to g+s.

1 - SSH only

When I set /bin/bash to be their shell, they can log in via ssh, add files, etc.
Permissions of files added via ssh are -rw-rw-r--, which is GOOD. I want that.

2 - FTP only

this is not very important, but users are not in the right directory (which is empty, so I cannot figure out which one it is). They cannot create anything. I'll live with it.

3 - SFTP - the weirder part.

when I set /usr/lib/sftp-server to be the user's shell, they can :
log in : yafc sftp://user@localhost/
list files
create new files
etc.

BUT (and this is my point) the files they create is set with permissions g-w !!! (more precisely, -rw-r--r--. So users cannot overwrite files created by others.

If I rerun sudo chmod g+ws on /home/SFFS, it will work, but this is not an option (trust me)

Since ssh works perfectly well, I assume the problem comes from vsftpd. Here are parts of my /etc/vsftpd.conf (I'm on ubuntu, if it changes anything) :

Code:

local_enable=YES
write_enable=YES
local_umask=0000        obviously this is not taken into account
file_open_mode=0777
chroot_local_user=YES
user_config_dir=/home/SFFS
chmod_enable=YES

Sorry for the text wall. I really hope someone could figure this out.
++

I am somewhat confused. Do you want your users to be able to access this directory via sftp or via an vsftpd server? sftp and vfstp are completely different packages.

Well, sftp = ftp + ssh. FTP is provided by vsftpd, ssh by openssh. This is different from ftps (ftp over ssl)

`aptitude search sftp` has no package named sftp anyway. And this part actually works : I just have a permissions problem.

ssh and vsftpd have nothing to do with each other. If you are having a problem with sftp it has nothing to do with vsftpd.

Have you set the PermitUserEnvironment option? See sshd_config(5).

i don't think you have to do this. from the sftp-server man page.

just set the user shell to bash or other shells that your environment allowed to be used. try to check umask settings and set it appropriately.